<template>
  <div class="person">
    <h1>中国</h1>
    <h2 ref="title2">北京</h2>
    <h3>东城</h3>
    <button @click="showLog">输出H2元素</button>
  </div>
</template>

<script setup lang="ts" name="Person">
import {ref, defineExpose} from "vue";

// 用于储存ref标记的内容
let title2 = ref()

let a = ref(0);
let b = ref(1);
let c = ref(2);

function showLog() {
  console.log(title2.value)
}

defineExpose({a, b, c})

</script>


<style scoped>
.person {
  background-color: skyblue;
  box-shadow: 0 0 10px;
  border-radius: 10px;
  padding: 20px;
}

button {
  margin: 0 5px;
}
</style>